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CVE-2021-24239

29
FAUCET Score

CVE-2021-24239 is a reflected Cross-Site Scripting (XSS) vulnerability affecting the Pie Register WordPress plugin prior to version 3.7.0.1, specifically due to improper sanitization of the invitaion_code GET parameter. This medium-severity vulnerability (CVSS 6.1) can be exploited remotely with low complexity, requiring user interaction, and could lead to information disclosure and limited integrity impact. While no active exploitation or Metasploit modules are reported, Nuclei templates exist, and there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.7.0.1CPE matchmatch criteria
cpe:2.3:a:genetechsolutions:pie_register:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.60%
Probability of exploitation in next 30 days
EPSS Percentile
73.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-24239 · Mar 31, 2023
This CVE's current EPSS score of 0.0160 is in the 85th percentile among its peer group of 26,220 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / changeset/2507536
PatchThird Party Advisory
wpscan.com / vulnerability/f1b67f40-642f-451e-a67a-b7487918ee34
ExploitThird Party Advisory